Tool holder



selst. 10, 1929.- JANDA 1,727,602 I TOOL HOLDER Filed March 29, 1928 JZr 5.. v

7 I N VEN TOR.

749 ATTORNEY.

Patented Sept. 10, 1929.

UNITED STATES JOSEPH JANDA, or arnenwoon, NEW YORK.

PATENTjOFF moon HOLDER.

Application filed March 29, 1928. Serial No. 265,617.

an embodiment of the invention as applied to hack-saws and in which Fig. 1 is a side elevation of a hack-saw, a portion of the hold er and blade being broken away, Fig. 2 a front elevation showing the saw-blade adjusted to a different plane, Fig. 3 a tragmentary view showing the means for placing the blade at a ditiercnt angle relative to the holder, and Fig. 4 a section along line 44 in Fig. 3.

In the drawing, 1 is the U-shaped holder having the parallel arms 2 and 3. The handle which is shown at 4 is provided near its inner end with two round holes extending at right angles to each other, the hole nearer the inner end being shown at 5 in Fig. 1. These holes are adapted to receive the end of the arm 2 of the holder 1. By means of a screw having a milled head 6, the end of arm 2 is securely held in either of said holes against rotation. The saw-blade shown at 7 is fastened with its end in small chucks 8 and 9, respectively. Each chuck is formed with a lug 10 and a fork 11 having a hole for a pivot pin 12 to pass through whereby the chucks are pivotally connected respectively with the inner end of the handle 4 and the inner end of a screw-bolt shown at 13. This screw-bolt passesthroughthe enlarged end of a bearing member 14 being swivelled on the arm 3 of holder 1. By means of a wing-nut 15 engaging the bolt 13, the latter can be displaced in either direction to either tighten or relax the saw-blade. A small screw shown at 16 which enters a longitudinal groove 17 cut in the bolt prevents the latter from turning in member 14. A second groove in the bolt is shown at 18, which is used to register with screw 16, in case it is desired to place the saw-blade at right angles ICE;

to the arms of the holder, in which case the I bolt is turnedabou't 909, whereas arm 2 of the 'holder 1 is passed through hole 5 near the inner end of handle 4. I v

.At "19 in Figs. land 3 is shown a small screw, which when tightened holds thebearing member 14 against rotation on arm 3.

'Fig. 2 shows, how the saw-blade may be offset relative to the arms 2 and 3 ofthe holder so as to occupy a diiierent plane.

In order to place the saw-blade in this position, one first screws'the wing -nut 15 in a direction to relax the saw-blade. Thenthe I screws 6 and 19 are loosened and the handle 4 and the member 14 are turned respectively about the arms 2 and 3 otthe holder intothe positions shown in Fig. 2. Thereuponthe screws 6 and 19are tightened and if neces-' sary the wing-nut 15 is also given a few turns to make the saw-blade sufficiently taut.

It will be readily seen that by the means above described the saw-blade canbe given any desired position relative to the holder. For instance, instead of the handle 4 and the member 14 being turned in the same direction, they can also be turned in opposite directions. Also, as already indicated above,

the saw-blade can be placed in a position at right angles to the position shown in Fig. 1, and when in said position can be offset relative to the arms of the holder.

While I have shown and described my invention as applied to a hack-saw, it is obvious that it can also be applied to similar tools in which the operating element is supported at its ends, and furthermore, I do not, of course, limit myself to the details oi the embodiment as shown because changes may be made therein without a departure from the essence of my invention.

I claim:

1. In a tool-holder, the combinationwith a holding frame, of means adapted to be angularly displaced relative to the ends of said holding frame about the axes of said ends, means adapted to support a tool at its ends and being pivotally connected parallel to the axes of said ends with said first-mentioned means so as to position the tool at any desired angle relative thereto, and means causing a longitudinal relative displacement between said first-mentioned means.

2. The combination as specified in claim 1, including means for securing said first-mentioned means in any position on said holding frame.

3. In a to0l-holder, the combination With a holding frame, of swivel members adapted to be angularly displaced relative to the ends of said holding frame about the axes of said ends, means adapted to support a tool at its end and being pivotally connected parallel to the aXes of said ends with said firstmentioned means so as to position the tool at any desired angle relative thereto, means for securing said swivel members in'any position on said holding frame, and means causing a longitudinal relative displacement of said swivel members. I v c 4. In a holder for saw-blades, the combination With a holdingframe having substantially parallel arms, of a handle mounted to be rotative about the longitudinal axis of one of said arms, a bearing member mounted to be rotative about the longitudinal axis of the other arm, a longitudinally adjustable element received in said bearing member, pivotal members connecting the ends of the sawblade and the said element and theinner end of said handle, said pivotal members pivoting about axes parallel to the-longitudinal axes of said arms, and means for'produc'ing a displacement of said longitudinallymovable member. v

5. The combination as specified in claim 4, including means for securing said handle and said bearing member at various angular positions relative to the respective arms of said holding frame.

.6. 'Ihe combination as specified in claim 4, including means for holding said element against rotation in said bearing member.

In testimony whereof I afliX my signature.

JOSEPH JANDA. 

